Home / 4,976.68-6,870.18-2,880.04

Finding the Fourth Proportional to 4,976.68, 6,870.18 and 2,880.04

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Solution

The fourth proportional to 4,976.68, 6,870.18 and 2,880.04 is: 3,975.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,976.68 : 6,870.18 = 2,880.04 : x
  2. Step 2: Convert to fraction form
    4,976.68/6,870.18 = 2,880.04/x
  3. Step 3: Cross multiply
    4,976.68x = 6,870.18 × 2,880.04
  4. Step 4: Simplify right side
    4,976.68x = 19,786,393.21
  5. Step 5: Solve for x
    x = 19,786,393.21/4,976.68
  6. Step 6: Final answer
    x = 3,975.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.